<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>buttons</title>
    <link rel="stylesheet" href="../css/qing.css">
</head>
<body>

   
<button class="btn btn-primary">primary</button>
<button class="btn btn-positive">positive</button>

<button class="btn btn-negative">negative</button>

<input type="button" class="btn pull-right" value="submit it">


</body>
</html>